Steam-boiler furnace.



` No. 139,218. PATENTED SEPT. 15, 1903.

C. B. REARIGK.

APPLICATION FILED MAY 22. 1901. RNEWED AUG. 19. 1903. N10 MODEL. I 2 SHEETS-SHEET 1.,

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' INVENTOR No. 7392118. 15ATBNTBDVSEPT-15, 1903.A I c. B. RBARIGK.

STEAM BOILER PURNAGE.

APPLICATION FILD MAY 22. 1901. RENEWBD AUG. 19. 1908.

NO MODEL. I Z SHEETS-SHEET Z, l

VII. w 'DI' WWA/5385s /NVEN TOR wmf@ /fe M' Patented September 15,*19-03. l

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CHARLS B. REARICK, -OF NEWYORK, N. Y#

STEAM-BOILER FUNACE.

SPECIFICATION forming' part of Letters Patent N o. 739,218-, dated September 15, 1903.: Application filed May 22, 1901. Renewed august 19. 1903. Serial No. 1'7 0,069. v (No model.)

To all whom it nutyconceru: v

Be it known that I, CHARLES B. REARICK,

a citizen of the United States, residing in New' York, county of New York, and State of New York, have invented a new and useful Improvement in Steam-Boiler Furnaces, of which the following is a speciiication.

My invention relates to an arrangement of furnaces for boilers, and particularly for xo water-tube boilers of the vertical type.

The purposes of my improved furnaces are,

l first, to secure more perfect combustion; second, to save floor-space; third, to support an arch of refractory material in such a manner that it can be easily and quickly repaired; fourth, to secure a double-deck furnace for water-tube boilers and have all the details of the furnaces supported independently of the tubes. y

Referring to the accompanying drawings and to the various views and reference-signs appearin gthe1eon,Figure 1 is afront elevation of a water-tube boiler of the general design as set forth in my application, Serial No. 734, 314,-

z5 filed October 21, 1899, my improved furnaces being shown in connection therewith. Fig. 2 shows a plan of the same boiler; Fig. 3, a crosssection view of a Seabury boiler with my double-deck furnaces; Figs. 4 and 5, modied forms of the upper furnace, ash-pit, and

arch.

The same part is designated by the same reference-sign wherever it occurs throughout the several views.

In Fig. 1 the boiler is seen to consist of two banks of water-tubes4 1, forming an inverted V, upper and lower headers 2 and 3, respectively, into which tubes 1 open at their frespective ends, steam and water drums 4, into l 4o which upper headers 2 open, down-flow pipes l 5 from steam and water drums to lower headers 3. l

The furnace comprises lower gratos 6, main beams 7 for supporting upper grates 8 and arch 10 and side bricks 11, bottom of ash-pit 9, tying together beams 7 and forming a backv ing for arch-bricks 10, all inclosed by the two banks of tubes land the end casings ofthe boiler. Beams 7 I prefer to construct .with a 5o top flange 7, a web 7b, and a lower flange 7 c. These beams 7 extend outside the casing at each end of the boiler, as indicated, and are anchored by brackets 13 to the columns 14, which are united to the base-beams 15 and the top beams 16. Beams 16 support the steam and water drums and the parts attached thereto vby means of lugs 17. Beam 18 is joined to 'beams 16 and supports the outer ends of the headers 2 and those parts attached thereto.

12 represents curved bolts or bent rods for holding arch-brick 10 in place. Side bricks -11 are held in place by means of bolts 19.

2O represents fire-doors and 21 represents y ash-pit doors.

22 and 23 are combustion-chambers.

Fig. 3 shows my double-deck form of furnace applied to another design of boiler known as the Seabury.

Figs. 4 and 5 show modified forms of ashpits and arches.

Instead of bent rods 12 I may use rectangular bars with keysI or other means of fastening the ends 0f same. By using bars of oblon g section I would obviate the necessity of having holes through the arch-brick 10, as slots in the ends of the brick would serve the saine purpose. f

Referring to Fig. '4, repairs may be made in arch or a part thereof by simplyremoving nuts of curved bolts 12,'letting section after section down at a time, replacing same with new brick, and returning same toformer position. This is accomplished in design (shown v in Fig.' 1) by removing nuts as before and forcing rod endwise until it clears beam 7, when the section is free to swing downward.

Instead of using the upper grate I may omit it and use only my brick arch over -lower grates to assist combustion. I may otherwise arrange for the support of the arch independently of the tubes 2.

In operation the'two furnaces work in conjunction with each. other in maintaining a higher furnace temperature, one of the most favorable conditions for good and effective combustion, and the reduction of floor-space required for a given sized unit of boiler of this type. When the lower grates only are fired and the arch used over same, the space above the arch serves as a combustion-chamber and will be found to materially assistto the end of more perfect combustion, with a tendency of a second ignition of the gases on reaching this chamber.

While I show and describe specific conlstructions of boilers and furnaces, I desire it to be understood that changes in and variations from the specific constructions shown and described would readily suggest themselves to persons skilled in the art and still fall within the spirit and scope of my invention, and I do not desire to confine myself to the exact constructions and arrangements as shown and described; but,

Having set forth the object and nature of my invention and forms of apparatus embodying the principles thereof, what I claim as new and useful, and desire to secure by Letters Patent, is-s l. In a steam-boiler furnace, the combination of two sets of grates arranged one above the other and suitable ash-pit for each, banks of water-tubes on either side of such gratos, with an arch of refractory material over the lower grates and embodied in the ash-pit under the upper set of grates.

` 2. In a steam-boiler furnace, the combination of two sets of grates arranged one above the other and suitable ash-pits for each, two banks of inclined water-tubes, together forming an inverted V and arranged on either side of such grates, with an arch of refractory material over the lower grates and embodied in the ash-pit under the upper set of grates.

In a steam-boiler furnace, the combination of a set of grates with a suitable ash-pit, banks of watertubes on either side of such grates, an arch of refractory material above the said grates and free from support from beneath, with a combustion-chamberbetween the said banks of water-tubes and above such arch.

4. In a steam-boiler furnace, the combination of a set of grates with suitable ash-pit, two banks of inclined water-tubes arranged on either side of such grates and forming an inverted V, an arch of refractory material above the said grates and between said banks of tubes and free from support from beneath, with a combustion-chamber between the said banks of water-tubes and above such arch.

5. In a stealnboiler furnace, the combination of a set of grates with a suitable ash-pit, banks of water-tubes on either side of such grates, an arch of refractory material free from support from beneath and above such grates and between such banks of tubes, a combustion-chamber above such arch and between the said banks of tubes, with means for supporting such arch independently of any of the water and steam filled portions of the boiler.

6. In a steam-boiler furnace, the combination of a set of grates with suitable ash-pit,

two banks of inclined water-tubes arranged on either side of such grates and forming an inverted V, an arch of refractory material above the said grates and between the said banks of tubes and free from support from beneath, a combustion-chamber above such arch and between the said banks of tubes, with means for supporting such arch independently of any of the water or steam filled portions of the boiler.

7. In a steam-boiler furnace, the combination of a set of grates with suitable ash-pit, banks of tubes on either side of said grates, an arch of refractory material above such grates and between such banks of tubes, with means for supporting such arch independently of any of the water or steam filled portions of the boiler, such means permitting the lowering of a section of said arch and the returning of same to its original position without dislodgin g the remainder of the arch.

8. In 'a steam-boiler furnace, the combination of a set of grates with suitable ash-pit, two banks of inclined tubes on either side of such grates and forming an inverted V, an arch of refractory material above such grates and between said banks of tubes, a combustion-chamber above such arch and between the banks of tubes, with means for supporting such arch independently of any of the water or steam filled portions of the boiler, such means permitting the lowering` of a section of said arch and the returning of same to its original position without dislodging the remainder of the arch.

9. Ina steam-boiler furnace, the combina tion of a set of grates with suitable ash-pit, banks of water-tubes on either side of said grates, an arch of refractory material above such grates and free from support from beneath and between said banks of tubes, with means for supporting such arch independently of any of the said water or steam iilled portions of the boiler.

10. In a steam-boiler furnace, the combination of a set of grates with suitable ash-pit, banks of water-tubes on either side of said grates, an arch of refractory material above such grates and free from support from beneath and between said banks of tubes, with means for supporting such arch independently of any of the said water-tubes.

Signed at New York, in the county of New York and State of New York, this 15th day of May, A. I). 1901.

CHAS. B. REARICK.

Titnesses T. C. REARICK, G. K. FULLAGAR.

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